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一种新型的旋转挤压套管锚杆施工技术,利用内外套管旋转挤压成孔,在内外套管之间设置一个注浆管,通过注浆管注浆,通过内套管安装锚杆体,施工完成。相比锚杆传统的施工工艺其优点是:旋转挤压套管锚杆能满足注水泥浆的功能;施工技术能保证了安装位置准确,还能确保居中安置;不需要泥浆护壁,钻孔不出土,非常环保;抗拔力能比普通锚杆提高50%以上,经济效益显著。(本工法涵盖了多项专利技术,未经专利人许可不得擅自使用)
A new type of rotary extrusion casing anchor construction technology uses internal and external casing extrusions to form holes, a grouting pipe is installed between the internal and external casings, and grouting is performed through a grouting pipe, and an anchor rod is installed through the internal casing. Body, construction is completed. Compared with the traditional construction process of anchors, the advantages are: rotary extrusion casing bolts can meet the function of cement slurry; construction technology can ensure the installation position is accurate, but also can ensure the centering placement; do not need mud shield, drilling will not unearthed , It is very environmental protection; The pull-out force can be increased by more than 50% than the ordinary anchor, and the economic benefit is significant. (This work method covers a number of patented technologies and may not be used without permission of the patent holder.)